﻿USE [Northwind];


--Task1

SELECT * FROM [Order Details];
SELECT SUM([Quantity] * [UnitPrice]) 'ValueDisposal' FROM [Order Details] WHERE [OrderID] = 10250;

--Task2
/*

SELECT * FROM [dbo].[Employees];



SELECT MAX(Discount) FROM [dbo].[Order Details];
SELECT * FROM [dbo].[Order Details] WHERE [Discount] = 0.25;
SELECT * FROM [dbo].[Order Details] WHERE [Discount] != 0.25;
*/

--Task3
